Process for the preparation of alpha-amino acids by hydrolysis of hydantoins at elevated pressure and elevated temperature

US6797827B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Martin Körfer · Goldbach, DE
• Dieter Buss · Aschaffenburg, DE
• Horst Weigel · Rodenbach, DE
• Christoph Weckbecker · Gelnhausen, DE
• Hans Joachim Hasselbach · Gelnhausen, DE
• Klaus Huthmacher · Gelnhausen, DE

Key dates

• Filing date: Jul 30, 2003
• Grant date: Sep 28, 2004
• Expiry date: Jul 30, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C227/24
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for the preparation of &agr;-amino acids by hydrolysis of hydantoins in the presence of water and at least one metallic oxide under conditions such that all the starting materials are completely dissolved in the water as a result of high pressure and high temperature and only one further phase is present in the reactor in addition to the metallic oxide phase.